/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.explorer.navigation;

import org.activiti.explorer.ui.management.admin.AdministrationNavigator;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.stereotype.Component;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Frederik Heremans
 * @author Joram Barrez
 */
@Component
public class NavigatorManager implements InitializingBean, Serializable {

    private static final long serialVersionUID = 1L;
    protected Map<String, Navigator> navigationHandlers = new HashMap<String, Navigator>();
    protected Navigator defaultHandler;

    public void addNavigator(Navigator handler) {
        navigationHandlers.put(handler.getTrigger(), handler);
    }

    public Navigator getNavigator(String trigger) {
        if (trigger != null) {
            return navigationHandlers.get(trigger);
        }
        return null;
    }

    public Navigator getDefaultNavigator() {
        if (defaultHandler == null) {
            throw new IllegalStateException("No default navigation handler has been set");
        }
        return defaultHandler;
    }

    public void setDefaultNavigator(Navigator handler) {
        defaultHandler = handler;
    }

    public void afterPropertiesSet() throws Exception {
        // Initialising all navigators
        //setDefaultNavigator(defaultHandler);

        addNavigator(new TaskNavigator());
        addNavigator(new ProcessNavigator());
        addNavigator(new ProcessModelNavigator());
        addNavigator(new DeploymentNavigator());
        addNavigator(new DatabaseNavigator());
        addNavigator(new JobNavigator());
        addNavigator(new UserNavigator());
        addNavigator(new GroupNavigator());
        addNavigator(new AdministrationNavigator());
        addNavigator(new MyProcessesNavigator());
        addNavigator(new SavedReportNavigator());
        addNavigator(new ReportNavigator());
        addNavigator(new ActiveProcessDefinitionNavigator());
        addNavigator(new SuspendedProcessDefinitionNavigator());
    }

}
